2-(Methylthio)-6-nitrobenzo[d]thiazole CAS 3621-99-6
| CAS No. | 3621-99-6 |
| Molecular Formula | C8H6N2O2S2 |
| Molecular Weight | 226.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Methylthio)-6-nitrobenzo[d]thiazole (C8H6N2O2S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(Methylthio)-6-nitrobenzo[d]thiazole (CAS 3621-99-6), molecular formula C8H6N2O2S2 and molecular weight 226.28 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O2S2 |
| Molecular Weight | 226.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Methylthio Standards
- 2-(Methylthio)-4-nitrobenzo[d]thiazole (CAS 3621-97-4)
- 2-(Methylthio)-5-nitrobenzo[d]thiazole (CAS 3621-98-5)
- 2-(Methylthio)-7-nitrobenzo[d]thiazole (CAS 2942-17-8)
- 7-(Methylthio)thieno[2,3-b]pyrazine-6-carboxylic acid (CAS 521948-60-7)
- 2-(3-(Methylthio)propoxy)benzoic acid (CAS 90184-14-8)
- Ethyl 2-[2-(Methylthio)phenoxy]acetate (CAS 3395-41-3)
- 2-((Methylthio)methyl)-4-propylpyrimidine-5-carboxylic acid (CAS 1247673-52-4)
- 2-(Methylthio)-6-phenylnicotinonitrile (CAS 252058-91-6)
Recommended Standards
- 2,6-Diamino-5-(6-hydroxyhexyl)pyrimidin-4(1H)-one (CAS 647831-42-3)
- 2-(1-Ethyl-4,5-dihydro-1H-imidazol-2-yl)quinoxaline (CAS 761368-65-4)
- 2-Amino-5-ethyl-6-methyl-4-(1H-pyrrol-2-yl)nicotinonitrile (CAS 640757-19-3)
- 2-((4,6-Bis(dimethylamino)-1,3,5-triazin-2-yl)amino)ethanol (CAS 31482-09-4)
- (3aS,6aS)-2,2,6-Trimethyl-3a,6a-dihydro-4H-cyclopenta[d][1,3]dioxol-4-one (CAS 104832-21-5)
- 3,4-Dimethyl-2-thioxo-2,3-dihydrothiazole-5-carboxylic acid (CAS 313514-01-1)
- 6,6-dimethyl-6,7-dihydro-1-benzofuran-4(5H)-one (CAS 76230-27-8)
- 7α,25-Dihydroxycholesterol (CAS 64907-22-8)
- 3-Chloro-2-(piperidin-4-yloxy)-5-(trifluoromethyl)pyridine (CAS 1092352-80-1)
- 1,4-Bis(2-fluoro-4-isopropoxyphenyl)butane-1,4-dione (CAS 289039-80-1)
- 2-Chloro-4-(piperidin-3-yloxy)benzonitrile (CAS 902836-92-4)
- Mosapride Impurity 60 (CAS 112913-93-6)
- 3,5-Bis(trifluoromethyl)thioanisole (CAS 685892-24-4)
- Neuropeptide EI (human, mouse, rat) (CAS 125934-45-4)
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